Wrench



Oct. 14. 1924. 1,511,395

. K. CANAN WRENCH I Filed Ma 26, 1923 '2 Sheets-Sheet INVENTOR Y WITNESSES m t T 60 Jiezth (IQ/22am ATTORNEYS Oct. 14, 1924. 1,511,395

K. QANA WRENCH FiledMay 26. 1923 2 smu -sheet. 2

WITSES I INVENTORY $225k Caimn A TTORNE YS Patented Oct. 14, 1924.

UNITED STATES KEITH CANAN, OF MARION, INDIANA.

WRENGH.

Application filed. May 26,

To all whom it may concern:

Be it known that I, KEITH CANAN, a citizen of the United States, and a resident of Marion, in the county of Grant and State of Indiana, have invented certain new and useful Improvements in Wrenches, of which the following is a specification.

This invention relates to an improvement in wrenches, and has for its object to provide a wrench which may be readily converted from a socket wrench to an ordinary or angle wrench without impairing the capacity of the wrench to exert a powerful turning or twisting strain on the work.

A further object is to provide a wrench of this character having jaw faces or work engaging means which so grip or engage the work as to be effective to impart a powerful twisted strain or torque thereto without liability of slipping or marring or deflecting the work.

A still further object is to provide a device of this character havin a handle or operating means adapted for convenient and effective manipulation irrespective of whether the wrench is used as a socket wrench or angle wrench, the said operating means or handle having these capacities and at the same time being of such a nature as to present no obstructions when the wrench is not in use or when it is used as an angle wrench but being of a compact nature and of a well balanced and simple construction.

A still further object is to provide a wrench of this character and having the foregoing advantages and which at the same time is of simple and durable construction, reliable in operation and easy and comparatively inexpensive to manufacture.

Other objects and advantages of the invention reside in certain novel features of the construction, combination and arrangement of parts which will be hereinafter more fully described and particularly pointed out in the appended claim, reference being had to the accompanying drawings forming part of this specification, and in which:

Figure 1 is a View in elevation, showing the preferred embodiment of the invention in use as an angle wrench;

1923. Serial No. 641,625.

Figure 2 isa view thereof, partly in longitudinal section and partly in elevation, and showing the wrench in use as a socket wrench;

Figure 3 is a detail view in edge elevation of the wrench head;

Figure 4 is a similar view thereof in central longitudinal section;

Figure 5 is a fragmentary View of the wrench head, showing the same in transverse section, the plane of the section of Figure 5 being at right angles to the plane of section of Figure 4:;

Figures 6 and 7 are plan views illustrating the action of the jaw faces with small and large nuts;

Figure 8 is a detail view of the handle in central longitudinal section; and

Figure 9 is a detail view in plan of the auxiliary operating lever.

Referring to the drawings wherein for the sake of illustration is shown the preferred embodiment of the invention, the numeral 10 designates generally the wrench head which as clearly shown in section in Figure 4 includes a body portion or stock 11. with which a fixed jaw 12 is integrally formed or otherwise suitably connected. Below the fixed aw 12 the body portion 11 is formed with a longitudinally extending opening or recess 13 and below and communicating with the recess 12 is a transverse opening or recess 14. A moving or sliding jaw 15 is provided and has integrally formed therewith a bearing portion or slide 16 which is fitted for easy sliding movement in the opening 13 of the stem 11. The under face of the bearing portion or slide 16 has cut or formed therein teeth 17 which are operatively engaged by a worm or screw 18 accommodated in the transverse opening 14:. The worm or screw 18 is mounted on a bearing pin 20 extending through the opening 14 and through an axial opening of the screw 18 and journaled in bearings 21 provided therefor in the stock 11 of the wrench. A plug 22 is threaded into a counterbore 23 formed in the stock 11 around one of the bearings 21 and engages the pin 20 to prevent axial or endwise displacement of the pin 20. With this arrangement the jaw may be readily and easily adjusted toward and away from the jaw 12 so; as to adapt the Wrench for use with work of various sizes.

As shown in the drawings the jaws '12 and 15 are provided or formed with specially constructed jaw faces. These jaw faces are of identical construction soythat a com mon description will serve'fo-r both. They are designated generally at and each is formed with a pair of fiat, plan-e work engaging surfaces 26 arranged at each side of the jaw face and an intermediate or central V-shaped depression or groove 27 It is to be understoodof-course that the flat planesurfaces 26 of one jaw is directly opposed to the corresponding surfaces of'the other jaw and so also as to the V-shaped grooves 27 'Thewrfench head 10--also includes a shank, designated generally at 30 and which is preferably integrally formed with the stock 11 although it'may be otherwise suitably connected to this stock if found desirable. The front and back faces of this shank 30 are plane, flat and are parallel to each other but one-of the end faces, designated at 31 is arranged vertically or perpendicularly that is parallel to the vertical axis of the wrench head whereas the opposite or other end face, indicated at-32, inclines with respect to the vertical [axis and with respect to the end face 31. The inclination of the face 32 may be varied asfo'und suit-able and in the drawings it is shown as having an inclination ofapproxima-tely 22 9. This relation and formation of-the shank 30 and its end faces 31 and 32-h'a-s a very important function in theuse-of the w'rench as will be hereinafter fully set out. v

A handle, designated-generally at 35 is 7 provided and is hollow and is preferably of tubular form. At-one end th'ehandleis enlarged to provide a socket 36 having flat parallel front and back walls 37 engageable with the flat'front and back or side faces of 'theshank 3 O and having one vertical'end wall 38-parallel to the longitudinal axis of the handle 36 and an inclined end wall 39 which bears ail-angular relation to the longitudinal axis of the handle as well as to the end wall 38; v

Thewrench head 10 is adapted to be assembledwith the handle 35 in two ways accordingly as it is desired to use the wrench as a socket wrench or as an angle wrench. If it is desired to use thewrench as a socket wrench it is usually desirable to have the handle and the wrench head coaxial so that in assemblying the wrench head and handle for use as a socket wrench, the shank 30 is introduced'into the socket 36 with the vertical end face-31' of the wrench engagingthe vertical end wall 38 of the socket and with the inclined end face 32 of the shank 30 of the wrench head engaging the inclined end wall 39 of the socket 36. On the other hand when it is desired to use the wrench as an angle wrench it may be considered desirable to have the handle 35 bear an angular relation to the wrench head 10 and this relation or arrangement may be readily accomplished by inserting the shank 30 of the wrench head in the socket 35 in such manner that the end face 31 of the shank engages the end wall'39 of the socket and that the end face 32 of the shank engages the end wall 38 of the socket. In otherwords if it is desired to change the relation of the wrench head to the'handle from that shown in Figure 2 to that shown in Figure 1 the wrench head is withdrawn from the socket with the parts positioned as shown in Fig ure 2 and is rotated'about its vertical axis through 180. It is then reinsertedinto the socket toprovide the arrangement of'parts shrown in Figure 1.

In either. arrangement the wrench head is held in assembly with the handle bymeans of a locking pin 10 which is entered throu h the opening 41 providedin one wallof tie socket 36 and extended through'an opening 12 provided in the shank 30. As shown in the drawings one end of the pin is headed as at-43, and the'oppositeend is provided with a reduced and threaded extension 44 which in the assembly engages a threaded opening 15 provided in the wall of the socketopposite the opening 41-1. Thi's'pin 40 is readily releasable so as topermit of ad= justments and operations herein-above de scribed.

WVhen the wrench is --in use as a socket wrench it will us'uallybe found desirable if not necessary to have an-auxiliary operat= ing lever in addition to the handle 35 "and for this purpose an auxiliary operatin-gla ver 50 is providedand when not in use is housed; in the hollow handle 35. In order to releasablyholdthe auxiliary operating 1e ver 50 in the hollow-handle 3'5 ,itis provided adjacent one end with an eXte'r'nal-lythread ed annular shoulder 51engageable with an internally threaded coun'terbore 52 provided in the lower end of the handle. Adjacent the shoulder 51 aknurled head 52 is formed on the operating lever 50 and facilitates placing of the lever in the handle 35 and the removal of the lever therefrom. At a suitable point in the handle 35 a number of pairs of bearing openings '55 are provided. It 'is to be understood of course that the members of each pair of bearing openings 55 are diametrically opposite; When the auxiliary operating leveris insertedin'any pairof openings 55 as for instance asshown in Figure 2 the lever may be utilized for conveniently applying a powerful twisting strain to the wrench head and consequently With the work with which it is engaged.

I claim:

In a wrench, a Wrench head having a shank provided with a vertical face and an inclined face and a handle having a socket provided with a vertical wall and an inclined wall, the shank being adapted to be 10 fitted in the socket with its vertical face engaged with the vertical Wall of the socket and with its inclined face engaged with the inclined wall of the socket or withits ver tical face engaged with the inclined wall of the socket and with its inclined face engaged with the vertical wall of the socket, and means for releasably securing the shank in the socket.

KEITH CANAN. 

